baber/WOPTO huggingface dataset:
Patent GB-749825-A (GB)
Title: Improvements in and relating to fuel injection internal-combustion engines
IPC: F02B23/06
Filed: 1952-12-02
Abstract: 749,825. Direct injection engines. KRUG, H. Dec. 2, 1952 [Dec. 17, 1951], No. 30512/52. Class 7(3) In a fuel injection engine having a combustion chamber 2 in the piston 1 in the shape of a body of rotation, the fuel is injected to form a film on the wall of the chamber, from which it is removed by the air rotating therein. The injection nozzle 4 provides three short jets of fuel 6...8 which produce thin fuel films 14...16 on the wall of the combustion chamber 2 which may be a sphere or an elliptroid of revolution and has a short cylindrical outlet passage 3. The air in the cylinder, and hence in the combustion chamber, is caused to rotate by the air inlet passage which is spirally curved adjacent the inlet valve, the stroke of which valve may be increased beyond that necessary for full opening of the valve port. The cross section of the passage 3 is about 65 per cent of the largest cross section of the chamber 2 and its length is 15 to 30 per cent of the radius of the chamber, the injection orifices being arranged at about 2 to 4 mm. below the outer edge of the passage 3 at the top dead centre. The piston head, cylinder head, and inlet and exhaust valves may be formed with curved surfaces, the piston head having a different radius of curvature from that of the cylinder head.
Patent GB-1019142-A (GB)
Title: Tetracycline compounds and preparation thereof
IPC: C07C233/00
Filed: 1962-08-09
Abstract: The invention relates to a modification in the process of preparing 12a-deoxytetracycline metal complexes and the corresponding tetracycline compounds according to the parent Specification, wherein the complex-forming metal used is in elemental form or in the form of an oxide or a salt which is insoluble in the reaction-inert solvent used, and in which the oxidation step comprises either employing the metal complex so formed, or conducting the reaction in the presence of such metal complex, or conducting the reaction in the presence of a metal in elemental form or in the form of an oxide or salt which is insoluble in the reaction-inert solvent, said metal complex being capable of forming such a metal complex with the starting 12a-deoxytetracycline. The oxygenation step may be effected without prior removal of the unreacted elemental metal or insoluble oxide or salt of said metal.  The elemental form of the metal may be adsorbed on a porous support.
Patent GB-207364-A (GB)
Title: Improvements in milk churns
IPC: B65D51/24
Filed: 1922-11-09
Abstract: 207,364. Robinson, A. S. F. Nov. 9, 1922. Detachable stoppers secured by clamping-devices; packing-rings for stoppers. - In a milk churn, a packing-ring b at the extreme margin of the mouth and between the lid and the churn is compressed by operating screws i housed in an apron c depending from the lid, the ends of the screws being formed as or controlling wedge-like members adapted to be forced beneath the flange d of the churn. The packing-ring co-operates with a groove in the churn to make the lid self-centring. The heads m of the screws may be protected by the rubber buffer g described in Specification 201,690, [Class 66, Hollow-ware], or a non-rotatable screw r, Fig. 4, may be moved axially by a nut o located in a housing p. In another form, the screw has a square socket adapted to receivea removable key.
Patent GB-260433-A (GB)
Title: Improvements in roofs of closed vehicle bodies
IPC: B60J7/02
Filed: 1925-12-05
Abstract: 260,433. Standard Motor Co., Ltd., and Maudslay, R. W. Dec. 5, 1925. Hoods. - Closed vehicle bodies of the kind having a sliding rcof portion or hatch are provided at each lateral edge with a rubber strip adapted to bear resiliently on the flange of the hatch and yet permit relative sliding. Fig. 1 shows the hatch 4 provided with a flange 5 embracing a longitudinal T-shape member 3, a rubber strip 6 gripping the member 3 being interposed. In modifications a flange 10, may slide in a groove Fig. 2, on the hatch or recessed portion of the block 7 secured to the top 2 of the sides, a rubber strip 6 overhanging the flange, or the block 7 and strip 6 may be combined as a rubber strip or two rubber strips secured to the top 2 may embrace a T-shape flange on the hatch. Fig. 7 shows the joint between the hatch top and the front cross-member 20 of the car, a flange 22 impinging on the rubber strip 21 secured to the cross-member, 20 while Fig. 8 shows the closure at the back of the hatch, rubber strips 27 being secured to flanges 24, 26 carried by the hatch 4 and body 25 respectively. Draining grooves and channels may be provided.
Patent GB-346731-A (GB)
Title: Improvements in and relating to electric condensers
IPC: H01G4/30
Filed: 1929-10-10
Abstract: 346,731. Condensers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Bailey, W. M. ; 31, Tudor Street, Lynn, Massachusetts, U.S.A.) Oct. 10, 1929, No. 30759. Convention date, Oct. 10, 1928. Void [Published under Section 91 of the Acts]. [Class 38 (ii).] Condensers for very high frequency work comprise a centre portion 7 of alternate foils and mica or other dielectric, separated from outer portions 5, 6 by means of thicker dielectrics 4, whereby the extra reactance causes the current to flow more evenly throughout the stack. Foils of opposite polarity are connected to common leads 8, 9, and the stack is clamped and provided with a moulded insulating covering. The thin dielectrics at the ends make the capacity easily adjustable, and at the same time are protected by the thicker sheets 4. The latter are preferably from threeto five-thousandths of an inch thick.
Patent GB-465599-A (GB)
Title: Improvements in inverted incandescence gas lamps
IPC: F23D14/30
Filed: 1935-11-08
Abstract: 465,599. Inverted incandescent gas lamps. KEITH & BLACKMAN CO., Ltd., J., and KEITH, G. Nov. 8, 1935, No. 30885. [Class 75 (i)] One or more syphon tubes 21, 22 are disposed partly within and partly exteriorly of the chimney 2 for thermally syphoning secondary air to one or more, preferably mitrailleuse, burner heads. The up-comer limbs 21 communicate with a chamber 11, having air-inlets 13 in the base 12, and the down-comer limbs 22 are connected to chambers 23 communicating through openings 24 with chambers 24a through which the groups of burner tubes 20 project. The chamber 11 communicates with the chimney 2 through an annular passage 7 and ports 8 of greater total area than the inlets 13 so that the pressure in the chamber is always substantially equal to the pressure in the globe 33 and wind effect on the chimney does not alter the pressure produced by the syphon tubes. The amount of secondary air supplied is controlled by valves 27 or metered by fixed orifices. Gas is supplied from the tube 9 through a branch tube 9<1> and a nipple 15 to a mixing-tube 16 projecting into the mixing- chamber 17. The nipple may be provided with an auxiliary outlet 15<1>, controlled by a needle valve 34, and additional gas may be supplied automatically by a small tube 35 when lighting or extinguishing the lamp. Each mantle 19 is carried by a refractory ring 37 provided with lugs 38 engaging bayonet slots in spring clips 39 attached to the plate 14. In a modification, the mixing-chamber 17 is supplied by two oppositely - disposed mixing - tubes and the secondary air is controlled by conical obturators in the lower end of the tubes 22. The upcomer limbs may be indented or fitted with staggered cross rods, or twisted strips of metal &c. may be inserted therein, to ensure good transmission of heat from the chimney gases to the ascending air, and the upper portions and return bends 26 of the syphon tubes may also be ribbed externally or internally. Each syphon tube may comprise more than one up-comer, or down-comer, limb, and a plurality of tubes may be arranged for operation in series. Two or more chimneys, each traversed by the up-comer limb of a syphon tube or tubes, may be provided.
Patent GB-158771-A (GB)
Title: Improvements in or in connection with electrical switches
IPC: H01H1/42
Filed: 1919-12-11
Abstract: 158,771. Lundberg, A. P., Lundberg, G. C., Lundberg, P. A., and Pegg, G. Dec. 11, 1919. Switches, quick-break of the tumbler type are provided with a quick-action wire spring 6 of U- shape in plan which is secured at the bend to the switch casing, the limbs extending on either side of the contact member 3 and engaging rollers 5 or projections thereon. The limbs are bent as shown so that they hold the switch member both in the ' on ' and the ' off ' position. In addition to the usual contact-member 3, the switch is provided with a second, spring-plate contact arm 4 electrically connected with the main contact member and co-operating with a fixed spring- plate contact 9. Switchboards. A number of switches as described may be arranged together to constitute a switchboard for a motor-car lighting-set. In the construction shown in Fig. 1, the plate contact 9 is extended so as to serve for two of the switches, and is connected to the tail lamp. Consequently, when either the lower switch (connected to the head-lights) or the middle switch (connected to the side lights) is closed, the tail-light is simultaneously put on. The uppermost switch controls the generator.
Patent GB-211213-A (GB)
Title: Improvements in and relating to metallic resistances
IPC: H01C3/10
Filed: 1922-11-14
Abstract: 211,213. British Thomson-Houston Co., Ltd., and Laycock, N. Nov. 14, 1922. Resistance grids. -A number of grids are formed in a continuous strip as shown in Fig. 1 and are mounted on two sets of rod supports P, Q, Fig. 3, the first grid 1 being mounted on one set of supports P, the strip of grids being then bent through an angle of 180‹ about the bend A, Fig. 1, to enable the second grid 2 to be mounted on the supports Q. The strip is again bent about the bend B through 180‹ and the third grid mounted on the supports P, and the process.continued, alternate grids being mounted n the same set of supports. The process is carried out by mounting the two sets of supports in a box in a revolving table. The grids are fed in a trough and when the first grid has been mounted moving and stationary quick-release grips are operated to grip the loop A and the table rotated through 180‹ thus bringing the grid 2 over the second set of supports on which it is mounted. Insulating washers are then placed on the supports, the grips adjusted and the table again rotated through 180‹ and the next grid mounted on the first set of supports, and so on.
Patent GB-430004-A (GB)
Title: Improvements in or relating to grading or weighing appliances
IPC: G01G5/02
Filed: 1933-11-08
Abstract: 430,004. Weighing-apparatus. WALKDEN, W., Westaway, and TRUSLOVE, W., Newlands, both in Mayfield, Sussex. Nov. 8, 1933, No. 31163. [Class 143] A weighing or egg &c. grading appliance comprises a weighing beam or lever 8 and a float or buoyant member 4 rigidly connected thereto and disposed in oil, water or other liquid, the weighing beam also having an arm 13 associated with a pointer and scale for indicating the weight or grade of the egg or other article. The scale pan 12 is situated directly over the float. The weighing beam is provided with an adjustable counterbalance weight 11 and its movements are limited by stops 14 or by a slot in an upwardly-projecting arm 15 carrying the indicating scale 16. The movements of the beam are damped by a perforated member 6 surrounding the float within the liquid container.
Patent GB-1362021-A (GB)
Title: Stepladders
IPC: E06C7/08
Filed: 1971-07-02
Abstract: 1362021 Step-ladders F RUSCHITZKA 2 July 1971 [4 July 1970] 31203/71 Heading E1S A step-ladder comprises hollow stiles 1 and metal steps 4, each step being open at its ends and comprising a tread portion 6 with longitudinal side portions 4a angled downwardly and inwardly and then angled (4b) either upwardly (Fig. 5) or downwardly (Fig. 2) to lie parallel to the stiles 1, the portions 4b bearing against and being connected, e.g. by rivets 8, to the front and rear faces of the stiles, the tread portion 6 being recessed at its ends at 7 to accommodate the stiles. The free edges of the parallel portions may be bent inwardly (4d, 10), and in the case of upwardly extending parallel portions 4b such flanges 4d may support the tread portion 6. The side faces of the stiles are preferably convex.
Patent GB-414254-A (GB)
Title: Stoppers for bottles with internal expanding device
IPC: B65D39/12
Filed: 1933-11-09
Abstract: 414,254. Stoppers for bottles. THIEL, A., 19, Heerstrasse, Bad Godesberg, Germany. Nov. 9, 1933, No. 31225. [Class 125 (iii).] A bottle stopper having a central cavity b and a screw bolt d with a conical head e surrounded by loose plates h which are expanded by the operation of the bolt to cause expansion of the wall of the stopper is provided with a conical extension i on the head k of the bolt, between which and the conical head e the plates hare clamped so that they spread along their entire length either cylindrically or conically in accordance with the shape of the bottle neck. The stopper may be reinforced by a flanged ring c, the flange of which is serrated. The knob k may be covered with a metal cap m which limits the projection of the bolt from the knob, or the bolt may project through a hole in the cap and be pierced at the end by a pin o or by a ring to enable the stopper to be hung up.
Patent GB-1348928-A (GB)
Title: Multiple output fluidic gate
IPC: F15C1/14
Filed: 1971-07-05
Abstract: 1348928 Fluidic elements WESTERN ELECTRIC CO Inc 5 July 1971 [6 July 1970] 31301/71 Heading G4P A fluidic unit has two inputs 101, 102 associated nozzles 104, 105, and a number of outputs. As shown there are three outputs. If fluid is present at input 102 only, the jet from nozzle 105 attaches to the lowest wall of the chamber and exits at output 118 (Fig. 3). If fluid is present at input 101 only, the jet from nozzle 101 is directed by the opposite curved wall to exit also at output 118 (Fig. 2). If both jets are present and of equal velocity the jets interact to provide a resultant jet that, aided by the action of cusp 109, exits at 120. However, if the jet from nozzle 105 has substantially greater velocity than that from nozzle 104 the resultant jet takes the path shown and exits at 121. Output 118 represents an EXCL-OR output and output 120 an AND output. If one of the jets is present continuously, e.g. that from nozzle 104, the unit may be regarded as an analog-digital converter since the output from which fluid flows will depend upon the velocity of the jet from nozzle 105. The unit may be used to energize under-pressure and over-pressure alarms connected to outputs 118, 120 in response to variation in the velocity of the jet from nozzle 104, the other jet being of constant velocity.
Patent GB-648857-A (GB)
Title: Improvements in circuit arrangements for operating gas- or vapour-filled electric discharge devices
IPC: H05B41/06
Filed: 1947-11-26
Abstract: 648,857. Supply systems for space discharge lamps. GENERAL ELECTRIC CO., Ltd., and WILLOUGHBY, A. H. Nov. 26, 1947, No. 31313. [Class 38 (iv)] To ensure immediate restarting of a discharge device, particularly a high-pressure metal vapour lamp D, when an interrupted main supply source is restored a subsidiary supply circuit is connected to the lamp, when relay C1 becomes de-energized, in order to provide a small current and maintain an appreciable ionization within the device without preventing the device to cool down, the subsidiary supply circuit being automatically disconnected when the relay is energized upon restoration of the normal supply. The subsidiary supply source may comprise a battery B arranged to be disconnected or discharged at the end of a period sufficient for the temperature of the device to be low enough to permit restarting by the normal supply voltage and the battery may be recharged upon restoration of the normal supply. Contact 2 is arranged to close before contact 1 opens to avoid interruption of the lamp current, and an inductance L included in the subsidiary supply circuit provides a voltage pulse to the lamp during change-over to maintain ionization during the switching operation, this pulse finding its way to terminal T2 through the stray capacitance of relay contacts 3, 4 or a condenser (not shown) connected between terminal T2 and the junction of choke L and resistor R3. A switch 53 may be coupled with switches S1, S2 for rendering the subsidiary supply circuit inoperative controlling the normal supply to the lamp.
Patent GB-190341-A (GB)
Title: Improvements in and relating to the manufacture of hard courts for tennis and the like
IPC: E01C13/06
Filed: 1921-11-23
Abstract: 190,341. Welsh, R., and Davin, L. F. Nov. 23, 1921. Continuous paving.-A hard court for tennis. is prepared on a drainage foundation by applying thereto a mixture of crushed oxidized clinker ash and crushed red brick, the quantity of red brick being equal to or greater than that of the clinker ash. The oxidized clinker ash is obtained by allowing clinker, withdrawn from furnaces, to continue to burn as long as possible in air or oxygen.
Patent GB-1071348-A (GB)
Title: Substituted aromatic azines
Inventor: NITTEL FRITZ
IPC: G03C7/00
Filed: 1964-08-04
Abstract: The invention comprises compounds of the formula <FORM:1071348/C2/1> wherein R represents a hydrogen atom, a straight-chain or branched alkyl group having 1 to 20 carbon atoms, an alkaryl or aralkyl group, R1 represents a hydrogen atom or an alkyl group, R11 represents a hydrogen atom or an alkyl or aryl group; X represents O or S; Y represents a hydrogen atom, a halogen atom, a hydroxy, etherified hydroxy, sulpho, carboxy group or a group of the following formula <FORM:1071348/C2/2> n is an integer from 1-10 and m is an integer from 1-2, at least one of the integers m and n being larger than 1. Such compounds are employed in ultra-violet filters, particularly in photographic elements (see Division G2).  The symmetrical azines are obtained by reacting appropriate aldehydes or ketones with hydrazine whilst unsymmetrical azines are obtained by reacting appropriate aldehydes with appropriate hydrazones of aromatic aldehydes or ketones.  In the production of one symmetrical azine epichlorhydrin is dropped into a heated mixture of n-octanol and stannic chloride to obtain g -chloro-propylene glycol a -octyl ether which is reacted with 4-hydroxybenzoldehyde in the presence of sodium methanol and sodium iodide to obtain the corresponding ether aldehyde which is then reacted with hydrazine hydrate to obtain the desired azine.  By reacting the same intermediate with salicylaldehyde hydrazone instead of hydrazine hydrate an unsymmetrical azine is obtained. Many additional g -chloropropylene glycol ether starting materials and additional products are listed.
Patent GB-731092-A (GB)
Title: Improvements in or relating to a tap unit for a liquid dispensing apparatus
IPC: F16N35/00
Filed: 1952-12-12
Abstract: 731,092. Signs; dispensing liquids; indicating liquid levels. HANDLEY, J. D. Dec. 10, 1953 [Dec. 12, 1952], No. 31478/52. Classes 3 (2), 116 and 123 (1). [Also in Group XXIX] A tap unit for a liquid, e.g. oil gravity dispenser has a horizontal guide cylinder 7 with a lower rear discharge orifice 8 and an outer cylinder longitudinally movable shell 6 with a deflector or spout 17 which, when the tap is closed, extends from the discharge orifice through a body opening 20 into a drip collector 20a and is automatically moved clear of the orifice on opening the tap. On pulling the handle 6a over the fixed guide against a light spring 27 until a striker 26 abuts a flange 33b on a valve plunger 25, the spout attached to the handle is moved outwardly away from the orifice 8. Further outward movement of the guide handle then lifts the valve 10, 25 sliding within the guide off its seat 9 against a spring 23 to allow liquid from a tank to flow by gravity out of the pipe 4. The collector may have a smooth outer surface or be formed with the curve 35 and opening 36 to collect surface drops. The tap may be padlocked through holes 54 in the handle and body or a'rearwardly swivelling slotted handle may lock over a body lug. The tank has a self-wiping dip stick 42 of arcuate section with a recessed scale 42b, and a flow control valve 47 on an interior pipe elbow 46 at the bottom of the tank manually actuated at 49 through a long spindle 48 having a cam follower 48a to provide closed, half-open and fully-open positions. The dispenser has an illuminated display sign 37 and the polished tube 4 is surrounded by a transparent liquid display vessel 38.
Patent GB-537227-A (GB)
Title: Improvements in and relating to wearing apparel
IPC: B63C9/115
Filed: 1939-12-05
Abstract: 537,227. Buoyant garments. EVANS, G. H., EVANS, W. H., and KITTON, J. Dec. 5, 1939, No. 31511. [Class 141] A life-saving jacket, preferably sleeveless, comprises front and back portions 10, 11 both lined with kapok, preferably blanketed and quilted and thicker at the front than at the back, the lower part 10' of the front portion being left free to form a flap which can be folded or rolled up and secured over the chest by means of buttons 15 and loops 16, press studs &c. The back portion is provided with a strap and buckle for securing the garment to the wearer, while the two sections of the front portion can be secured together by a sliding clasp fastener 13. Reference has been directed by the Comptroller to Specification 115,465, [Class 141].
Patent GB-451474-A (GB)
Title: Improvements in electric discharge tubes
IPC: H01J5/32
Filed: 1935-11-14
Abstract: 451,474. Uniting metal to glass by heat. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Nov. 14, 1935, No. 31574. Convention date, Feb. 11. [Class 39 (ii)] One or more of the current supply wires 2, 3 of an electric discharge tube is, or are, sealed into the pinch 1 with the interposition of an intermediate layer 4 consisting of a kind of glass different from that of the pinch. The pinch, which is preferably of the normal rectangular type, may consist of lead glass, whereas the intermediate layer consists of calcium glass, and may be provided in the form of a tube which is slipped on to the wire and sealed into the pinch during the sealing-in operation.
Patent GB-822422-A (GB)
Title: Tetracycline antibiotic compositions
IPC: A61K31/65
Filed: 1957-10-10
Abstract: A tetracycline antibiotic composition having enhanced capacity for absorption into the blood stream on oral administration comprises one or more tetracycline antibiotics in admixture with one or more metaphosphate, pyrophosphate, polyphosphate or ultraphosphate.  The tetracycline antibiotic is tetracycline, chlortetracycline, bromotetracycline or oxytetracycline, in the form of the free base, a salt with an acid such as hydrochloric or sulphuric or an alkali or alkaline earth metal salt such as the sodium or calcium salts.  The dosage unit form preferably contains 25 to 500 mg. of the tetracycline admixed with 1 to 3 parts by weight of the phosphate. The preferred dosage unit is a capsule containing such a powder, e.g. a mixture of tetracycline and sodium metaphosphate.  The powder may be granulated and used as such or pressed into tablets.  The compositions may be in any form suitable for oral administration to humans and animals.  Examples are given, inter alia, of capsules containing (a) tetracycline, sodium metaphosphate, lactose and magnesium stearate and (b) tetracycline, sodium metaphosphate, liquid paraffin and magnesium stearate.  Specifications 637,424, 737,614 and 755,198, [Group IV (a)], are referred to.
Patent GB-260441-A (GB)
Title: Improvements in or relating to drinking troughs for cows and other animals
IPC: A01K7/00
Filed: 1926-06-07
Abstract: 260,441. Baily, A. M. June 7, 1926. Drinking - appliances for animals.- A drinking-trough a for cattle and the like is provided with a lid b curved or curled upwardly at its front edge, the whole of the front edge projecting beyond the side of the trough. The lid is hinged by trunnions c projecting through rings secured to an adjacent wall or through holes in lugs secured to the ends of the trough. A stop prevents the lid being lifted beyond a certain limit.